Conference item
A Simple Thermodynamical Witness Showing Universality of Macroscopic Entanglement
- Abstract:
- We show that if the ground state entanglement exceeds the total entropy of a given system, then this system is in an entangled state. This is a universal entanglement witness that applies to any physical system and yields a temperature below which we are certain to find some entanglement. Our witness is then applied to generic bosonic and fermionic many-body systems to derive the corresponding "critical" temperatures that have a very broad validity. © 2009 World Scientific Publishing Company.
- Publication status:
- Published
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Bibliographic Details
- Volume:
- 16
- Issue:
- 2-3
- Pages:
- 287-291
- Host title:
- OPEN SYSTEMS and INFORMATION DYNAMICS
- Publication date:
- 2009-09-01
- DOI:
- EISSN:
-
1793-7191
- ISSN:
-
1230-1612
- Source identifiers:
-
158538
Item Description
- Pubs id:
-
pubs:158538
- UUID:
-
uuid:41a44219-638d-4762-8f39-6514c1a3cbc1
- Local pid:
- pubs:158538
- Deposit date:
- 2012-12-19
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- Copyright date:
- 2009
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